Hi Slicepong,
I think to be honest its most important to be ready and comfortable with the grip when returning serve and the bat angle isn’t too important. If you have to change your grip after receiving this will make things difficult for the next shot. I would focus on keeping the bat high and not letting it drop too low when returning serve so you are ready to get on top of the ball abd control it if the opponent serves long and fast. As you say myself and Dan have slightly different positions when returning so it’s more how you feel comfortable.